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  6  Power for the Sidearm 
  User’s Guide 
Sidearm All-Terrain Handheld PC™ 
Installing the main battery 
 
1. Slide the battery into the battery slot on the right side of 
the Sidearm as shown below. 
 
 
 
 
 
2. Insert the rubber battery door and turn the lock tab to the 
locked position. 
 
Tip:  If this is the first time you are using this battery, 
charge it (see “Charging the battery,” later in this 
chapter. 
 
 
Determining main battery condition 
 
To check the main battery’s condition: 
 
Open the Control Panel (
Start / Settings / Control 
Panel
) and double-tap the power icon. 
 
 
Low power management 
 
The Sidearm automatically turns off if the main battery 
becomes too weak to power the unit.  When this happens, 
recharge the main battery or replace it with a charged 
battery (see next section). 
 
CAUTION:  If the main battery is removed for an 
extended period, or if the main battery is installed but 
remains depleted for an extended period, all data in 
memory will be lost.  For this reason, it’s a good idea to 
keep a charged main battery in the unit at all times.